i would like some advise on a resent auction sale. Item is a 20 plus year old amplifier/receiver with all functions working. Posted it and a few days later I received good feed back. All good. Then over 3 weeks later person has put in a return claim, saying that turntable input not working (only one channel) working. Now, I test my gear so thoroughly this fault could not have been missed. Asked why this was not reported sooner, his response was he was waiting for other components (speakers ect) to make a hole system. Does he have a case and will eBay make me refund him? Thanks